77CAh

CLAAS 77CAh – Claas Hyd A60 Claas Hydraulic Module: Checksum error on valve 2, electrodistributor 2 remains at neutral

Issue description

A checksum error has been detected on valve 2, which is caused by electrodistributor 2 remaining in the neutral position. This issue is associated with the electrodistributor module (A105-2).

Check the cause

  1. Electrodistributor 2 position

  2. Electrodistributor module (A105-2) functionality

  3. Valve 2 checksum integrity

Repair steps

  1. Verify electrodistributor 2 position

    Ensure electrodistributor 2 is not stuck in the neutral position.

  2. Inspect electrodistributor module (A105-2)

    Check for any signs of malfunction or damage to the electrodistributor module (A105-2).

  3. Reset or recalibrate valve 2 checksum

    Follow the service manual procedures to reset or recalibrate the checksum for valve 2.

Parts you might need

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